The top keychain pocket watch made by man was the site indicating the times of day by the shadow of the sun.
Just as many watches, keychain pocket watch were guided by water passing through a graduated container to another. As this system worked in an impeccable manner, the predecessor to the hourglass appeared. The Hourglass highlighted in the third century. It consisted of two spherical glass containers together with a narrow channel that connected the two sides reaching a day to control.
According to many sources, in the year 1267/77, time was controlled with a regular and continuous rotary motion mechanically. With this mechanism the mechanical clock was born, based on these principles was constant evolution until today. Taking fundamental relationship Leonardo Da Vinci, Galileo, Huygens, Hooke, and many more who contributed their knowledge and ingenuity to change and improvement. The many models that appeared are hard to ignore. This keychain pocket watch evolution is certainly fantastic in many ways. There is still an existing need to control the time just as ancient civilizations that were guided by the day and night or cycles of the moon.
In Switzerland, between the ranges of the Jura and the Alps, back in 1535 a significant number of refugees fleeing to Geneva target of religious persecution, finding peace in these places desired base for technical development indisputable craftsmanship of those who forged the machine to control time. However, it was in France were the keychain pocket watch appeared for the first time.
Other refugees are aimed at Neuchâtel, Germany, going into the Black Forest, forests of spruce and beech of intense color, sometimes dark, have suggested the name of the forest, this forest is common in an ash-gray plumage bird that recently seen the shadows of the forest and issues in the spring (with more intensity in mating season) the Cu-Cu-known song, the bird gave rise to man's imagination conduct the Cu-Cu famous clock that moves the joyful singing forest to our homes. Where this does leaves the keychain pocket watch? It appeared later to suit everyone needs at a different level.
In the fifteenth century engine invented the dock and the conoid as sketches of Leonardo Da Vinci, allowing the construction of the first portable timepieces, it retains some German and French, 1540, 1551. In 1641 Galileo conceived the principle of a pendulum swings in developing the project, but construction of the first mechanical clock pendulum was carried out by Huygens in 1657, astonishing rhythmic pendulum swings and the sweet solemnity of the tower.
Switzerland has the Geneva International Museum which is located in a beautiful nineteenth-century mansion in the middle of a leafy grove, there are about 10000 pieces of all time that visitors can appreciate and see the evolution of the keychain pocket watch along with many other models.
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